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Idaho Weather Records
Weather can't be accurately forecast more than a week or so in advance, but weather averages are good indicators of what to expect any month.
The following graph indicates record highs and lows for Boise, Idaho.
Month Average high Average low Warmest ever Coldest ever Average precipitation
JAN. 36 22 63 -17 1.4
FEB. 44 27 70 -15 1.1
MAR. 53 31 81 6 1.2
APRIL 62 37 92 19 1.2
MAY 71 44 98 22 1.2
JUNE 80 52 105 31 0.9
JULY 90 58 111 35 0.3
AUG. 88 57 110 34 0.3
SEP. 78 48 101 23 0.6
OCT. 65 39 94 11 0.7
NOV. 48 30 74 -3 1.4
DEC. 38 23 65 -25 1.4
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